Reservoir safety razor



April 6, 1965 H. RESNICK ETAL 3,176,391

RESERVOIR SAFETY RAZOR Filed Dec. 28, 1962 2 Sheets-Sheet 1 INVENTORS A00/5 SH/V/D/WA/V,

HYM4/V els's/v/c/q A ril 6, 1965 Filed Dec. 28, 1962 H. RESNICK ETAL3,176,391

RESERVOIR SAFETY RAZOR 2 Sheets-Sheet 2 United States Patent Ofi3,176,391 Patented Apr. 6, 1965 ice 3,17 6,391 RESERVOER SAFETY RAZORHyman Resnick, 2983 N. 6th St, Harrisburg, Pa., and

Louis Shnidman, 1878 N. (Ilinton Ave, Rochester,

Filed Dec. 28, 1962, Ser. No. 247,937 2 Claims. (Cl. 3041) Thisinvention relates to a replaceable reservoir safety shaver.

An object of the present invention is to provide a replaceable reservoirsafety shaver which lends itself to ready use, and requires no attentionother than cleaning after a shaving operation with occasionalreplacement of a cartridge containing shaving lubricant.

Another object of the present inven ion is to provide a replaceablereservoir safety shaver which is easy to operate, and which is positivein action;

A further object of the present invention is to provide a replaceablereservoir safety shaver which is constituted of'few parts, is appealingto prospective users, and is FIGURE 5 is an exploded taken on the lineview of the replaceable reservoir safety shaver of FIGURE 1;

- FIGURE 6 is a perspective view of the shaving head removed from thereplaceable reservoir safety shaver of FIGURE 1, and laid down so thatthe bottom is faced out;

FIGURE 7- is a view similar to FIGURE v3, with parts broken away,showing the valve member after execution of sliding movement in-onedirection with one of its passages in communication with the plungershifted to open position and in communication with one or" thepassageways of the head; and

FIGURE 8 is a plan view of the shaving head of FIG- URE '1, with therazor blade mount removed, showing the valve member, in inoperativeposition and the relation of its vertical passages to the passageways inthe shaving head.

Referring to the drawings, numeral 19 designates a replaceablefreservoirsafety shaver of the present invention. This shaver comprises a shavinghead 12, a replaceable cartridge 14 serving as a reservoir andcontaining shaving lubricant under pressure connected to the head 12, anopen top shell 16 encompassing the replaceable cartridge and having theopen top releasably engaging the shaving head 12 and serving as ahandle, and a safety razor blade mount 18 overlying and fixedly attachedto the top of the shaving head, the mount being adapted to support ablade so that a cutting edge overlies the discharge end of a passagewayprovided in the adjacent side of the shaving head 12. v

The shaving head 12 has a top it a bottom 21, and a plurality of opposedsides between the top 21) and bottom 21. There are two'pairs of opposedsides, the one pair comprising the opposed sides 22 and 23, and theother pair comprising the opposed sides 24 and 25. The head is providedwith a transverse bore 26 intermediate the top 2d and the bottom 21, thebore extending between one of the pair of opposed sides 22 and 23 andopening out of the sides 22 and 23. The head 12 has a passageway 27which extends along each of the other pair of opposed sides 24- and 25with one end opening into the bore 26 and the other end opening out ofthe top 20 of the head 12. Specifically, each passageway 27 is of aconfiguration, FIGURES 7 and 8, simulating a V with the apex end 28constituting the one end opening into the bore 26 and the free ends ofthe legs 29 opening out of: the top of the head 12. p

The bottom 21 of the head 12 is provided with a recess 17, FIGURES 6 and7, which extends inwardly and terminates at a point adjacent the bore26, and an outlet port 719 extends from the terminating point of therecess 17' and opens into the bore 26.

A valve member 36) is mounted in the bore 26 of the shaving head 12 forsliding movement in opposite directions, the valve member, FIGURES 3, 5,7 and 8, being provided with spaced vertical passages 31 and horizontalgrooves 31 on its top face. The valve member is formed with an embracingmeans or groove 32 extending transversely across its under face, thegroove being disposed midway between the passages 31. The purpose ofthis means or groove 32 will become subsequently ap parent.

Operatively connected to each end of the valve memher 3% and normallyprojecting out of the adjacent sides 22 or 23 is a spring-biasedoperating button 34, the button serving to effect the sliding movementsof the valve member fill in the respective directions responsive toapplication of a compressive force applied to a selected button.Specifically, the valve member 36 at each end terminates in a stem St?on which is press fitted a button 3d, and circumposed about the stem isa coil spring 33, one end of the coil spring 33 bearing against thebutton 34 and the other end of the coil spring 33 bearing against ashoulder provided in the head 12, as clearly shown in FIGURE 4.Application of a compressive force to the button 35 iadjacent the side22, FIGURE 3, brings the passage 31 and horizontal groove 31 on its topface adjacent the side 22, FIGURE 7, into-communication with the saidone end or apex end 28 of the passageway 27 in the side 24- of theshaving head 12. Application of a compressive force to the buttonadjacent the side 23, FIGURE 3, brings the other or" its passages 31 andhorizontal groove 31 on its top face, FIGURE 8, into communication withthe said one end or apex end 28 of the passageway 27 in the side 25.

The replaceable cartridge 14 has a valve plunger 43 which controls theflow of shaving lubricant therefrom, the valve plunger being normallyspring-biased to a closed position, as shown in FIGURE 3. Specifically,the valve plunger 4% is mounted in a socket 46 provided in the top of adispensing tube 47 extending into the cartridge 14, the plunger having abase which, FIG- URE 2, rests upon an upstanding coil spring 48supported within the socket id. The valve plunger 40 projects slidablyout of the top of the replaceable cartridge 14. The replaceablecartridge is insertable into the recess 17 so that the projecting partof the valve plunger 40 extends through the outlet port 19 and its freeend is within thebore 26. and is embracinglyreceived within theembracing 7 means or groove 32 in the valve member 30 witha portion ofthe replaceable, cartridge adjacent the top encompassed by the recess17.

Releasable interengaging means on the replaceable car tridge portion andthe wall of the recess 17 detachably secures the replaceable cartridge14to the head 12. Spe-" cifically, this releasable "means comprises acollar .42 I

which embracingly engages the top portion of the re placeable cartridge'14, FIGURE 5, the collar being pro:

The replaceable cartridge 14, upon being in- The safety razor blademount 18, :FIGURE' S; com

position into registry withsaid passage and the associated horizontalgroove 31.

Thereplaceable reservoir safety shaver, because of its simplicity ofstructure, requires no attention, other than a cleaning after use, andoccasional replacement of the replaceableeand disposable cartridgecontaining the shaving lubricant. 'Even' this replacement may beeffected with ease and facility, since all it requires is the detachmentof the shell 16'fromthe. head 12, the turning or rotating ofthereplaceable cartridge -14 in the direction to bring the lugs '43 intoregistry with the slot 44, applying a withdrawal force to thereplaceable cartridge 14 to cause. the lugs 43 to travel outof the slot44, the withdrawal of the-col1ar42 from the repl'aceable cartridgeand'rnounting upon therefill replaceable cartridge 14, the insertion ofthe refill replaceable cartridge so that .the lugs 43 are enteredin theslot44, pushing the replaceable cartridge 14 toward the head 12'untilthe lugs 43. arereceived I J Within or are'engaged by the entry'pointsof'the. arcuate prises-a guard-'50 which overlies andis fixedly'attachedto the top '20 of :the shaving head l2. The guard 50 is provided'along'each of its sides with spaced elongated 1 slots=52 whichare inregistrywith the adjacent freeends. of the legs '29 of the -V-'shapedpassageways j '27 of. the" head 12.. Rising from thejguard 56 are apair'of anchor' 7 V 7 16, thereplaceable 'cartridge14, or shaving head12, can

bars 51 arranged inlongitudinal aligned relation, the bars slots 45,rotating the magazine. partially to cause the seatingof' the lugs 43' inthe. latterjslots. 45, mounting the s'hell 16 so'that it encompasses thereplaceable cartridge 14 and then detachably securing theopen end of theshell tothe head 12. 1 w

The foregoing description and figures are for illustrative'purposes toexplain the principle and features of the extending through alongitudinal slot 52 providedin the double-edged-safety razor blade f53.The blade 53is held in 'fixedmounted position upon the guard '50 bymeans-of a backing member 54 which ishingedly connectedto an end of theguard 50and is. swingable from the extended position, shown in FIGURE 5,to a position Y overlying andenga'ging the guard 50. The top portions ofthe'anchor' bars 51 are embracingly received in a longitudinal slot 55formed in theunder face of the'backing member, as sh Wn-in FIGURE'ZI Thebacking member present invention. In. thisregard, the shell or handlebeofany convenient or desirable shape or' size. Furfther, the slidemember 30, althoughshown as square, may

be round, triangular, rectangular, or any other convenient geometricalshape; 7

The foregoing description, whileitdeals'witha replaceable'reservoirshaver of the multiple or double-edged blade, is by no means restrictedor confined .to such. The

presented'replaceable'reservoirsafety shaver canbe used 54 is held inmounted'position by means of the latch y 7 element 56- carried by thebacking member and releasably engaging with a hook "57 provided ;on the"guard '50.

It is to be notedthat due to the curvature of the guard 50 and'thebacking member 54, the blade'53, when mounted'ther'ebetween, acts toexert a pressure upon the latch element 56 to hold it in tightengagement with the .hook 4 57. i v In use of the thus-describedreplaceable safety shaver,

for single-edged" or injectorblades with only minor .changes intheshavihgheadlZ, and pasasgeway 27, while theremainder of the shavingunit conforms in principle as il-lustrated'anddescribed; V e

What is claimedisz" V 1.:In1a' replaceable 'reservoirsafety shaver, ashaving head having a top, a-bottom, and a plurality of pairs of opposedsides bet-ween thetop'and bottom, there being the usergraspsthe handleor shell 16 with a hand and thenpositions-the shaver so that the side 25is contiguous to-the cheek, whereupon compressive forceis applied to thebutton 34 adjacent the side 23, FIGURE 3'. Application of suchforce-causesthe valve memberfitlto move in the direction toward the side22 of the head 12, result-Q ing in the shifting of the passage 31adjacent the side '23 of the'head 12 into registry' with'the apex611C128 of the passageway 27. of the side 25 of the head 12, andshifting of -the.groove 32 inthe valve member. 30 out of embracingengagement with'the -plunger and into depressing engagement withtheplunger to. thereby depress the" plunger 40 toopen position followedby the bringing .of the plunger- 40 in open-position into registry withsaid passage 31 and horizontal groove 31', asshown in FIG:

URES .5 and- 7, and therebyeifecting the flow of the shaving lubricantfrom the replaceable cartridge 14 out of the slots52' in. the guard andonto the cheek of the user. Release of the application of compressiveforce permits the button 34 to return the valve member 30 to itsinoperative position or the position of FIGURE 3,.un-

v the top of said head, and a yalve member mounted. in .said bore forsliding movement in opposite directions, said a transverse'bore in saidhead intermediate the top and bottom thereofand extendingbetween one ofthe pair of opposed sides of said head andiopening out of said opposedsides, the bottom ofsaid head being provided with a recess extendinginwardly and terminating at a point adjacent said bore,-the bottom ofsaid head being I provided with an'outlet port extending from theterminating point of-said recess and opening into said bore, said headhaving a passageway extending along each'of the other pair ofopposedsides 'of said *h'eadwith one end opening into said bore and theotherendopening out of valve member'being' provided withspacedjvertical passagesand a horizontal groove in association with each passage, slidingmovement of saidfmernber in one direcfti'on bringing one of itspassages, into communication "withsaid one end of one of saidpassageways'and the asderthe action of its associated spring. The sameoperation takes place upon the application of compressive force to thebutton 34 adjacent the side 22 andr the'release. of

the application of such force to such button, but with the; passage 31adjacent the side 22 of the head 12 shifted into registry withthe apexend 28 of the passageway-27 of the side 24 of theihead'lZ and theplunger 40 in open sociated horizontal groovefand'sliding movement inthe opposite direction bringing the other of its passages and theassociated horizontal groove into communication with said one end of theotherof. said passageways.

The replaceable reservoir'safety shaver according to claim 1,'whereinoperatively connected to each end of 'said valve {member and normallyprojecting out of the adjacent side of'said head is1a spring-biasedoperating button, the buttonserving toeifect the sliding movements ofthe valve member in the respective directions responsive to applicationof acompressive forceapplied to a selected button. 1 V

(References on following page) References Cited in the file of thispatent UNITED STATES PATENTS Warming Oct. 6, 1925 Schodlbauer Feb. 11,1936 5 Chandler Sept. 27, 1938 Keene Aug. 17, 1943 Cerino Dec. 15, 19536 Resnick et a1 Aug. 17, 1954 Orlando et a1. Mar. 26, 1957 GoldsteinApr. 30, 1957 Lipka June 17, 1958 Wolcott May 26, 1959 Norrish et a1June 14, 1960 Darvie Dec. 27, 1960

1. IN A REPLACEABLE RESERVOIR SAFETY SHAVER, A SHAVING HEAD HAVING ATOP, A BOTTOM, AND A PLURALITY OF PAIRS OF OPPOSED SIDES BETWEEN THE TOPAND BOTTOM, THERE BEING A TRANSVERSE BORE IN SAID HEAD INTERMEDIATE THETOP AND BOTTOM THEROF AND EXTENDING BETWEEN ONE OF THE PAIR OF OPPOSEDSIDES OF SAID HEAD AND OPENING ONE OF THE PAIR OPPOSED SIDES, THE BOTTOMOF SAID HEAD BEING PROVIDED WITH A RECESS EXTENDING INWARDLY ANDTERMINATING AT A POINT ADJACENT SAID BORE, THE BOTTOM OF SAID HEAD BEINGPROVIDED WITH AN OUTLET PORT EXTENDING FROM THE TERMINATING POINT OFSAID RECESS AND OPENING INTO SAID BORE, SAID HEAD HAVING A PASSAGEWAYEXTENDING ALONG EACH OF THE OTHER PAIR OF OPPOSED SIDES OF SAID HEADWITH ONE END OPENING INTO SAID BORE AND THE OTHER END OPENING OUT OF THETOP OF SAID HEAD, AND A VALVE MEMBER MOUNTED IN SAID BORE FOR SLIDINGMOVEMENT IN OPPOSITE DIRECTIONS, SAID VALVE MEMBER BEING PROVIDED WITHSPACED VERTICAL PASSAGES AND A HORIZONTAL GROOVE IN ASSOCIATION WITHEACH PASSAGE, SLIDING MOVEMENT OF SAID MEMBER IN ONE DIRECTION BRINGINGONE OF ITS PASSAGES INTO COMMUNICATION WITH SAID ONE END OF ONE OF SAIDPASSAGEWAYS AND THE ASSOCIATED HORIZONTAL GROOVE AND SLIDING MOVEMENT INTHE OPPOSITE DIRECTION BRINGING THE OTHER OF ITS PASSAGES AND THEASSOCIATED HORIZONTAL GROOVE INTO COMMUNICATION WITH SAID ONE END OF THEOTHER OF SAID PASSAGEWAYS.